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Finding the Fourth Proportional to 11,874.94, 17,805.82 and 4,859.88

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Solution

The fourth proportional to 11,874.94, 17,805.82 and 4,859.88 is: 7,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,874.94 : 17,805.82 = 4,859.88 : x
  2. Step 2: Convert to fraction form
    11,874.94/17,805.82 = 4,859.88/x
  3. Step 3: Cross multiply
    11,874.94x = 17,805.82 × 4,859.88
  4. Step 4: Simplify right side
    11,874.94x = 86,534,148.50
  5. Step 5: Solve for x
    x = 86,534,148.50/11,874.94
  6. Step 6: Final answer
    x = 7,287.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.